Goblin or Undead hunter?

Its time to do a race change and I want to know which race of these two that is best for a pvp hunter.
Undead got WotF which seems very popular amoung pvpers. The shadow resistance seems nice too since hunters are vulnerable to dots, and most dots are shadow damage. Cannibalize seems to fit hunters perfectly too.
Goblins on the other hand have a second disengage which is tempting and an additional ranged damage ability